Burner



SePt- 27,A 1932- c. KUEHNER 1,879,329

BURNER Filed April 9. 1930I A r MPC@ Patented Sept. 27, 1932 i UNITED-f STATES-g LoUIs o. KUEHNER, or sfr. LoUIs, MISSOURI, 'As'srernoitv To HANDLAN-Bucx MANUFAC:

TURING COMPANY, OF ST. LOUIS, MISSOURI,- A CORPORATION o 'nunk-ER OF MISSOURI Application mea .a'p'riiV s, 1930. serial No. 442,762. .i

This invention relates to a burner intended for use especially infrailway hand lanterns which are subjected to severe motion in giving signals, and constitutes an improvement on-Patent No'. 1,276,417, granted on August 20, 1918, to Georg-e H. Rolfes. The invention has 'for its object the production ofa flame spreading burner for a lantern of this -kind so formed'as to avoid extinction of the'flame due to currents of air entering the lantern. The flame spreader surrounds and surmou'nts the upper end of thewick tube, and'ineludes provision therein for the entrance of'airto supplyoxygen to a flame burning from the :Y wick, and said ame spreader also includes means for so protecting the air ent-rance ways as to avoid movement of air therethrough with suihcient force to'interfere withl the burning of the flame.

2,l The improved flame-'spreader disclosedKV herein also is provided with apertures in the end walls thereof which serve a VeryA important function in that they greatlyreduce the likelihood that the 'ame will be extin- 2-5 guished in the ordinary use of thelantern.- Fig. 1 is a top view of my burner in position on a lantern font.

F ig. 2 is a side elevation of a fragment of a lantern font, the burner being shown partly in elevation and partly in vertical longitudinal section. Y

Fig. 3 is an elevation of the upper portion of the lantern font, the burner being shown partly in elevation and partly in cross-sec.- tion. Y

In the drawing, wherein is shown for the purpose of illustration, merely, one embodiment of the invention, A designates a lantern font of any ordinary form, and B designates 40' a burner fitted tosaid font. The burner includes a wick tube b, within which -a wick C is arranged.

At the upper end of the wick tube of my burner a cup-shaped llame spreader D is arranged, this flame spreader comprising a bottom member 1 secured to the wick tube, endV walls 2, and side walls 3, the side walls preferably being longer than the end walls, thereby Vrendering the cupshaped spreader Vof elongated shape. In the side walls of the Y opportunity for strong currents of airto pass spreader are apertures 4, preferably of elongated shape, these apertures` terminating in proximity .to the top edges of said side Walls and extending downwardly to points near the bottom of the spreader. The aperturesserve to admit air to the interior ofthe SpreaderD in a lateral direction through the iside walls 3 tosupply the necessary oxygen lfor the sup` port of Acombustionimmediately above the wick ofthe burner, notwithstanding the-fact that the wick terminates at the bottoinof the spreader which extends thereabove.

The spreader D acts to spread't-he flame, due to its extension -above the height of the upper endl of the burner wick, the flame being 65 draw'nto the walls 2 and Bof the spreader, thereby enhancing the illuminating powerof the flame above the spreader. r n

Y ATo avoidthe direct passage of air currents through the apertures 4V with such force as mighti-nterferewith the steady burning of the flame within the flame spreader, I provideV baflie wings 5. lhese baille wings'extend downwardly and outwardly from the top` edges of'the side walls 3 ofthe flame spreader, being inclined away from said side Walls sojthfat'air may pass beneath them and then kupwardly to'enter therinterior Vof the ame spreader through the apertures 4. The baffle wings flare Voutwardly from the top of 380 the name-spreader, asfdescribed,` preferably downwardlyto a yhorizontal line through the burner "ata lowerleivel thanl the lbottoms of the-.apertures 4, and consequently there no a horizontal` course through the apertures 1', but, on the contrary, all air entering the spreader' through said apertures 4. must move in. an upward course soas to pass beneath the bale wings, and such air, by passage in an upwardcoursaassists materially not only in supplying oxygen to-the burner flamebut also in maintaining a steady fiame. The baffle wings 5 of my burner are preferably provided with apertures 5 solocated as to permit the passage of aV certain.- amount ofy airtthroughthe vbaiie wings when a lanternequipped with my yburner is lowered suddenly giving'psignals. Therefore, when a" lantern. isso moved, therecan bey no sudim0 den rush of air through the apertures 4 in such quantity as to interfere with the` `to the side wallsfo-f theflame spreader, I

provide each baffle wing witha supporting leg 5a suitably secured to the lower portion of the burner.

The structure which comprises the flame spreader D, baffle wings 5', and legs 5a' is preferably stampedfrom a ksingle sheet of metal, and this stamping is' bent so as to produce a structure of the proper shape. The arrangement of the structure referred to is such that each balfle wing v5 at its opposite ends is provided with inwardly extended flange portions 6, and at each endof the structure the inwardly extended flange portions 6 on the vbaffle wing atsuch end of the structure overlaps the `inwardly extended flange portion 6 on the baille wing at the opposite side of the structure, as shown by dotted lines at the point-s designated by the reference character 7 in Fig. 1. Also, at the opposite ends of the bottom member l of the flame spreader D, said bottom member is provided with portions 8 which are bent upwardly and across thetop edges of the overlapping flange portions 6, and then downwardly in Contact -with the outer faces of the outermost flange portions. This arrangement provides the end walls 2 of the flame spreader, and as the portions 8 closely embrace the overlappinginwardly extended flange portions 6 of the wings 5, a very rigid structure is provided. y

At the opposite ends o-f the flame spreader the end walls 2 produced by the associated apertures, integrallyv formed baille wings flaring downwardly and outwardly from the upper portions of the side walls of said cupshaped llame spreader, and suporting means for anchoring the lower ends of said baffle wings to said burner.

2. A lburner of the character described, comprising a wick tube, a cup-shaped flame spreader secured to said wick tube, the side and end walls of said spreader havingv aper-4 tures therein, said flamesprea-der including integrally formed flaring baffle wings which extend downwardly from the upper portions of. said side walls. to points beneath the lower `ledges of the apertures, and supporting means for anchoring the lowerends` of said baffle wings to said burner.

3. A burner of the character described, Y

comprising a wick tube and a cup-shaped flame spreader secured to said wick tube, the end walls of said spreader having apertures therein which areopen at the top edges of said end walls, integrally formed baffle-wings flaring. outwardly and downwardly from the upper portions of the side walls ofV said spreader, and supporting means for anchoring the lower ends o f saidbalfle wings to said burner.

4. A burner of the character described,

comprising a wick tube, a cup-shaped llame spreader secured to said wick tube, said flame spreader having side and end walls provided with apertures, integrally formed perforated baflle wings. flaring downvvardly and 'outwardly from the upper portions of the apertured sidewalls, and supporting means for anchoring the lower ends of said baille wings to said burner. Y

In testimony that I claim the foregoing I hereunto aflix my signature. f'

Y LOUIS C. KUEI-INER.

apertured, or otherwise cut away to provide openings 9. These openings are open at the top edges of the end walls 2 of the flame spreader and extend downwardly from said top edges, asshown clearly in Figs. 2fand i 3. It has been found that the presenceV of the openings 9 greatly increases the efficiency of the burner, inasmuch as the likelihood of the flame being accidentally extinguished is materially reduced because of the use ofsaid openings. While I have described my burner as being intended more especially for use with 1anterns, it is obvious that it may be used to good advantage in connection with lamps of various sorts. Y

I claim:

vl. A burner of the character described, comprising a wick tube, a cup-shapedV flame spreader secured to said wick tube, said flame f l spreader having end Walls provided with ISL 

